<template>
  <div>
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--面包屑bread-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a href="#">全部结果</a>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!--商品的名字的面包屑的地方  -->
            <li class="with-x" v-show="searchParams.categoryname">
              {{ searchParams.categoryname
              }}<i @click="removeCategoryName">×</i>
            </li>
            <!-- 关键字面包屑的地方 -->
            <li class="with-x" v-show="searchParams.keyword">
              {{ searchParams.keyword }}<i @click="removeKeyword">×</i>
            </li>
            <!-- 品牌的面包屑 -->
            <li class="with-x" v-show="searchParams.trademark">
              {{ searchParams.trademark.split(":")[1]
              }}<i @click="removeTradeMark">×</i>
            </li>

            <!-- 商品属性值面包屑的地方 -->
            <li
              class="with-x"
              v-for="(attrValue, index) in searchParams.props"
              :key="index"
            >
              {{ attrValue.split(":")[1] }}<i @click="removeAttr(index)">×</i>
            </li>
          </ul>
        </div>

        <!--selector-->
        <SearchSelector @trademarkInfo="trademarkInfo" @attrInfo="attrInfo" />

        <!--details-->
        <div class="details clearfix">
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <!-- 排序的解构 -->
              <ul class="sui-nav">
                <li :class="{ active: isOne }" @click="changeOrder(1)">
                  <a
                    >综合
                    <span
                      v-show="isOne"
                      class="iconfont"
                      :class="{ 'icon-xiafan': isDesc, 'icon-shangfan': isAsc }"
                    ></span
                  ></a>
                </li>
                <li :class="{ active: isTwo }" @click="changeOrder(2)">
                  <a
                    >价格
                    <span
                      v-show="isTwo"
                      class="iconfont"
                      :class="{ 'icon-xiafan': isDesc, 'icon-shangfan': isAsc }"
                    ></span
                  ></a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 商品展示区域 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li
                class="yui3-u-1-5"
                v-for="(good) in goodsList"
                :key="good.id"
              >
                <div class="list-wrap">
                  <div class="p-img">
                    <!--商品的图片:需要路由跳转的时候,携带商品的ID-->
                    <router-link :to="`/detail/${good.id}`"
                      ><img v-lazy="good.defaultImg"
                    /></router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>{{ good.price }}.00</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <a :title="good.title">{{ good.title }}</a>
                  </div>
                  <div class="commit">
                    <i class="command"
                      >已有<span>{{ good.id }}</span
                      >人评价</i
                    >
                  </div>
                  <div class="operate">
                    <a
                      href="success-cart.html"
                      target="_blank"
                      class="sui-btn btn-bordered btn-danger"
                      >加入购物车</a
                    >
                    <a href="javascript:void(0);" class="sui-btn btn-bordered"
                      >收藏</a
                    >
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!-- 分页器 -->
          <div class="fr page">
            <Pagination
              :total="total"
              :pageSize="searchParams.pageSize"
              :pageNo="searchParams.pageNo"
              :continues="5"
              @getPageNo="getPageNo"
            >
            </Pagination>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import SearchSelector from './SearchSelector/SearchSelector.vue'
import { mapGetters } from 'vuex'
export default {
  name: 'Search',
  data () {
    return {
      // 带给服务器的参数
      searchParams: {
        "category1Id": "",
        "category2Id": '',
        "category3Id": "",
        // 分类名字
        "categoryname": "",
        // 关键字
        "keyword": "",
        // 排序 初始状态 默认 综合|降序
        "order": "1:desc",
        "pageNo": 1,
        "pageSize": 3,
        // 平台售卖属性操作参数
        "props": [],
        // 品牌
        "trademark": ""
      }
    }
  },
  components: {
    SearchSelector
  },
  // 在发请求之前合并参数执行一次
  beforeMount () {
    // this.searchParams.category1Id = this.$route.query.category1Id
    // this.searchParams.keyword = this.$route.params.keyword
    // ES6新语法--合并参数--浅拷贝
    Object.assign(this.searchParams, this.$route.query, this.$route.params)
  },
  mounted () {
    // 在发请求之前带给服务器参数【search参数发生变化的值带给服务器】
    this.getData()
  },
  computed: {
    // ...mapGetters(['search/goodsList']),
    //借助mapGetters生成计算属性，从getters中读取数据。（数组写法）
    ...mapGetters('search', ['goodsList', 'total']),
    isOne () {
      return this.searchParams.order.indexOf('1') != -1
    },
    isTwo () {
      return this.searchParams.order.indexOf('2') != -1
    },
    isDesc () {
      return this.searchParams.order.indexOf("desc") != -1;
    },
    isAsc () {
      return this.searchParams.order.indexOf("asc") != -1;
    },
  },
  methods: {
    // 向服务器发送请求，获取search模块的数据（根据参数不同返回不同的数据进行展示）
    // 把这次的请求封装成一个函数：当你需要在调用的时候调用即可
    getData () {
      this.$store.dispatch('search/getSearchList', this.searchParams)
    },
    //清除面包屑-商品名字
    removeCategoryName () {
      //搜索条件商品名字清空
      // this.searchParams.categoryName = ''
      // this.searchParams.category1Id = ''
      // this.searchParams.category2Id = ''
      // this.searchParams.category3Id = ''
      //把带给服务器的参数置空了，还需要向服务器发请求
      //带给服务器参数说明可有可无的:如果属性值为空的字符串还是会把相应的字段带给服务器
      //但是你把相应的字段变为undefined，当前这个字段不会带给服务器
      this.searchParams.categoryname = undefined
      this.searchParams.category1Id = undefined
      this.searchParams.category2Id = undefined
      this.searchParams.category3Id = undefined
      //地址栏也需要改--骚操作:路由自己跳自己
      this.$router.push({ name: "search", params: this.$route.params });
      //为什么这里没有调用发请求函数？
      // 因为监听了路由
    },
    //面包屑移出关键字的回调
    removeKeyword () {
      //清空关键字
      this.searchParams.keyword = "";
      //修改URL
      if (this.$route.query) {
        this.$router.push({ name: "search", query: this.$route.query });
      } else {
        this.$router.push({ name: "search" });
      }
      //通知Header组件清除搜索关键字
      this.$bus.$emit("clearKeyword");
      //为什么这里没有调用发请求函数？
    },
    // 点击品牌触发的自定义事件
    trademarkInfo (trademark) {
      this.searchParams.trademark = `${trademark.tmId}:${trademark.tmName}`
      this.getData()
    },
    //面包屑清除品牌回调
    removeTradeMark () {
      //清空品牌的搜索条件
      this.searchParams.trademark = undefined;
      //再次发请求获取最新的数据展示
      this.getData();

    },
    // 收集平台属性地方(自定义事件)
    attrInfo (attr, attrValue) {
      // ['属性ID：属性值：属性名']
      let props = `${attr.attrId}:${attrValue}:${attr.attrName}`
      // 数组去重： if语句只有一行代码可以省略{ }
      if (this.searchParams.props.indexOf(props) == -1) this.searchParams.props.push(props)
      this.getData()
    },
    //商品属性值面包屑删除回调
    removeAttr (index) {
      //删除对应的数组里面元素
      this.searchParams.props.splice(index, 1);
      //在发一次请求
      this.getData();
    },
    changeOrder (flag) {
      let originFlag = this.searchParams.order.split(':')[0]
      let originSort = this.searchParams.order.split(':')[1]
      let newOrder = ``
      // 注意这里传过来的是数字 1 ，所以不能用 === 
      if (flag == originFlag) {
        newOrder = `${originFlag}:${originSort == 'desc' ? 'asc' : 'desc'}`
      } else {
        newOrder = `${flag}:desc`
      }
      this.searchParams.order = newOrder
      this.getData()
    },
    getPageNo (pageNo) {
      this.searchParams.pageNo = pageNo
      this.getData()
    }
  },
  watch: {
    // 监听路由信息是否发生变化以再次发送请求
    $route (newVal, oldVal) {
      Object.assign(this.searchParams, this.$route.query, this.$route.params)
      this.getData()
      // 每请求完一次后，应该把相应的1、2、3级分类的id置空，让它接收下一次相应的1、2、3的id
      // 分类名与关键字不用清理，因为每一次路由发生变化的时候，都会给予新的数据
      this.searchParams.category1Id = ''
      this.searchParams.category2Id = ''
      this.searchParams.category3Id = ''
    }
  }
}
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;

                  i {
                    margin-left: -5px;
                  }
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      .page {
        // width: 733px;
        height: 66px;
        overflow: hidden;
        // float: right;
      }
    }
  }
}
</style>